Self-closing oil gun capable of realizing oil vapor recovery

Abstract

The invention discloses a self-closing oil gun capable of realizing oil vapor recovery. The self-closing oil gun comprises a gun body, a gun barrel, a main valve, a vacuum valve assembly and a handle. An oil product channel is formed in the gun body, the main valve and the vacuum valve assembly are installed in the oil product channel, a gear engaging mechanism which can realize oil gun non-pressure self-closing by inducting the oil product pressure through a pressure inducting valve assembly is further installed in the oil product channel, the inner side of the gun barrel is provided with an inducting vapor faucet and an vapor suction pipe, a direction inducting valve assembly is installed between the vapor suction pipe and the vacuum valve assembly, a vapor return channel is further formed in the gun body and an oil vapor recovery pipe with the inner diameter larger than the outer diameter of the gun barrel is installed outside the gun barrel in a sleeved mode. The self-closing oil gun capable of realizing oil vapor recovery integrates the functions such as directional self-closing, inducting self-closing, oil vapor recovery, leakage prevention and single-hand operation, and has the advantages of being simple to operate, safe and reliable in performance, long in service life and suitable for wide popularization and application.

Description

technical field [0001] The invention belongs to the technical field of refueling equipment at gas stations, and in particular relates to a self-sealing refueling gun capable of realizing induction self-sealing, azimuth self-sealing and anti-drip leakage. Background technique [0002] When the gas station refuels the car, it all adopts a self-styled refueling gun, which has the function of automatically closing when the fuel tank of the car is full. For example, the patent No. ZL200820121082.5 is a self-sealing fuel gun, which includes a gun body, a handle assembly, a main valve, a control valve, and an oil outlet pipe. The main valve is composed of a main valve core, a main valve seat, a piston sleeve, and a piston. The end of the main valve core connection is shaped on an outer shoulder, a piston sleeve spring is arranged between the outer shoulder and the gun frame, the piston is placed in the piston sleeve, and the end near one end of the main valve core is shaped on a sh...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an oil and gas recovery self-sealing refueling gun, which integrates azimuth self-sealing, induction self-sealing, oil and gas recovery, anti-drip and one-handed operation, etc. It fundamentally solves the various defects of the existing fuel gun, and at the same time it is lightweight and easy to operate

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